Home / 5,180.27-7,148.78-2,822.36

Finding the Fourth Proportional to 5,180.27, 7,148.78 and 2,822.36

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Solution

The fourth proportional to 5,180.27, 7,148.78 and 2,822.36 is: 3,894.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.27 : 7,148.78 = 2,822.36 : x
  2. Step 2: Convert to fraction form
    5,180.27/7,148.78 = 2,822.36/x
  3. Step 3: Cross multiply
    5,180.27x = 7,148.78 × 2,822.36
  4. Step 4: Simplify right side
    5,180.27x = 20,176,380.87
  5. Step 5: Solve for x
    x = 20,176,380.87/5,180.27
  6. Step 6: Final answer
    x = 3,894.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.